Beginning April 13th, and until the mass revocation of all certificates generated on Sm@rtCafe 7.0 chip cards:
You can have two certificates of the same type: there will be no uniqueness.
They will have to be requested by EACAT, as you have done so far.
At the end of September (we will confirm the specific date) the AOC Consortium will massively revoke all certificates generated on the old cryptographic support (card).
The new cards will have some small design changes, marked in yellow in the image below:
Once the mass revocation of the certificates has been carried out, the financial return of the days not enjoyed up to the 4 years of validity of the revoked certificate will proceed.
Consider replacing your T-CAT with one T-CAT P, taking into account that the roles of Requester and Certifier can perform the signatures with T-CAT P. However, to access the subscriber's folder, the service manager role does require a certificate generated in a cryptographic device (T -CAT).
In the case of elected officials, do not apply for new T-CATs until after the municipal elections.
Remember that they can be done via EACAT massive loads of certificate requests.